12402302157 has 12 divisors (see below), whose sum is σ = 20473641760. Its totient is φ = 7087029768.

The previous prime is 12402302089. The next prime is 12402302173. The reversal of 12402302157 is 75120320421.

12402302157 is a `hidden beast` number, since 12 + 402 + 30 + 215 + 7 = 666.

It is not a de Polignac number, because 12402302157 - 2¹⁵ = 12402269389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12402302157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402302557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98430907 + ... + 98431032.

Almost surely, 2^12402302157 is an apocalyptic number.

It is an amenable number.

12402302157 is a deficient number, since it is larger than the sum of its proper divisors (8071339603).

12402302157 is a wasteful number, since it uses less digits than its factorization.

12402302157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196861952 (or 196861949 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 12402302157 its reverse (75120320421), we get a palindrome (87522622578).

The spelling of 12402302157 in words is "twelve billion, four hundred two million, three hundred two thousand, one hundred fifty-seven".